[vsnet-grb-info 5722] GRB080229, optical upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7377
SUBJECT: GRB080229, optical upper limit
DATE:    08/03/08 07:30:06 GMT
FROM:    Ryuuji Hara at U of Miyazaki  <ryuu55 at astro.miyazaki-u.ac.jp>

R. Hara, H.hayasi, N.Ohmori, K.Kono H. Tanaka, M.Yamauchi, E.Sonoda,
(University of Miyazaki)

We have observed the field covering the error circle of
GRB080229 (GCN 7338, C. Markwardt et al.) with
the unfiltered CCD camera on the 30-cm telescope at
University of Miyazaki.
The observation was started 17:05:03 UT, ~225 min
after the Swift trigger time.

We have compared our data of 30 sec exposures
with the USNO-A2.0 catalog,there is no new source
at the reported position.

the upper limits are as follows:
--------------------------------------------------------------
Start(UT) End(UT)	Num. of frames 	Limit (mag.)
--------------------------------------------------------------
19:33:57 19:34:27 	1 		~16.06
19:33:57 20:39:37 	20 		~16.79
---------------------------------------------------------------